4661154540 has 72 divisors (see below), whose sum is σ = 16158673440. Its totient is φ = 1065406464.

The previous prime is 4661154479. The next prime is 4661154541. The reversal of 4661154540 is 454511664.

4661154540 is a `hidden beast` number, since 4 + 6 + 61 + 1 + 54 + 540 = 666.

It is a super-2 number, since 2×4661154540² = 43452723291525223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4661154495 and 4661154504.

It is not an unprimeable number, because it can be changed into a prime (4661154541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1848405 + ... + 1850924.

It is an arithmetic number, because the mean of its divisors is an integer number (224426020).

Almost surely, 2^4661154540 is an apocalyptic number.

It is an amenable number.

4661154540 is an abundant number, since it is smaller than the sum of its proper divisors (11497518900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4661154540 is a wasteful number, since it uses less digits than its factorization.

4661154540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699351 (or 3699346 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 4661154540 is about 68272.6485497670. The cubic root of 4661154540 is about 1670.4411016428.

It can be divided in two parts, 4661 and 154540, that added together give a square (159201 = 399²).

The spelling of 4661154540 in words is "four billion, six hundred sixty-one million, one hundred fifty-four thousand, five hundred forty".