6061657644 has 72 divisors (see below), whose sum is σ = 17666507040. Its totient is φ = 1716567552.

The previous prime is 6061657643. The next prime is 6061657661. The reversal of 6061657644 is 4467561606.

6061657644 is a `hidden beast` number, since 60 + 6 + 16 + 576 + 4 + 4 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6061657644.

It is not an unprimeable number, because it can be changed into a prime (6061657643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77959 + ... + 134910.

Almost surely, 2^6061657644 is an apocalyptic number.

It is an amenable number.

6061657644 is an abundant number, since it is smaller than the sum of its proper divisors (11604849396).

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

6061657644 is a wasteful number, since it uses less digits than its factorization.

6061657644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212999 (or 212994 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 6061657644 is about 77856.6480398431. The cubic root of 6061657644 is about 1823.3238021828.

The spelling of 6061657644 in words is "six billion, sixty-one million, six hundred fifty-seven thousand, six hundred forty-four".