61005460554 has 48 divisors (see below), whose sum is σ = 139119952608. Its totient is φ = 20031633072.

The previous prime is 61005460543. The next prime is 61005460601. The reversal of 61005460554 is 45506450016.

61005460554 is a `hidden beast` number, since 6 + 100 + 546 + 0 + 5 + 5 + 4 = 666.

It is an unprimeable number.

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, 904197 + ... + 969320.

It is an arithmetic number, because the mean of its divisors is an integer number (2898332346).

Almost surely, 2^61005460554 is an apocalyptic number.

61005460554 is an abundant number, since it is smaller than the sum of its proper divisors (78114492054).

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

61005460554 is a wasteful number, since it uses less digits than its factorization.

61005460554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873601 (or 1873589 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 61005460554 in words is "sixty-one billion, five million, four hundred sixty thousand, five hundred fifty-four".