6660157077 has 72 divisors (see below), whose sum is σ = 11816993760. Its totient is φ = 3594144960.

The previous prime is 6660157069. The next prime is 6660157079. The reversal of 6660157077 is 7707510666.

It is not a de Polignac number, because 6660157077 - 2³ = 6660157069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660157079) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3124302 + ... + 3126432.

Almost surely, 2^6660157077 is an apocalyptic number.

It is an amenable number.

6660157077 is a deficient number, since it is larger than the sum of its proper divisors (5156836683).

6660157077 is a wasteful number, since it uses less digits than its factorization.

6660157077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2533 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 6660157077 is about 81609.7854242982. The cubic root of 6660157077 is about 1881.4592824320.

The spelling of 6660157077 in words is "six billion, six hundred sixty million, one hundred fifty-seven thousand, seventy-seven".