6157649663 has 8 divisors (see below), whose sum is σ = 6949072080. Its totient is φ = 5404833280.

The previous prime is 6157649653. The next prime is 6157649669. The reversal of 6157649663 is 3669467516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6157649663 - 2⁴ = 6157649647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6157649669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9651170 + ... + 9651807.

It is an arithmetic number, because the mean of its divisors is an integer number (868634010).

Almost surely, 2^6157649663 is an apocalyptic number.

6157649663 is a deficient number, since it is larger than the sum of its proper divisors (791422417).

6157649663 is a wasteful number, since it uses less digits than its factorization.

6157649663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19303017.

The product of its digits is 4898880, while the sum is 53.

The square root of 6157649663 is about 78470.6930197510. The cubic root of 6157649663 is about 1832.8981185512.

The spelling of 6157649663 in words is "six billion, one hundred fifty-seven million, six hundred forty-nine thousand, six hundred sixty-three".