64157554077 has 8 divisors (see below), whose sum is σ = 85545282816. Its totient is φ = 42770764032.

The previous prime is 64157554001. The next prime is 64157554099. The reversal of 64157554077 is 77045575146.

It is a happy number.

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

It is not a de Polignac number, because 64157554077 - 2¹⁶ = 64157488541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64157554177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55693 + ... + 362514.

It is an arithmetic number, because the mean of its divisors is an integer number (10693160352).

Almost surely, 2^64157554077 is an apocalyptic number.

It is an amenable number.

64157554077 is a deficient number, since it is larger than the sum of its proper divisors (21387728739).

64157554077 is a wasteful number, since it uses less digits than its factorization.

64157554077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469347.

The product of its (nonzero) digits is 4116000, while the sum is 51.

The spelling of 64157554077 in words is "sixty-four billion, one hundred fifty-seven million, five hundred fifty-four thousand, seventy-seven".