60640136357 has 16 divisors (see below), whose sum is σ = 61378504704. Its totient is φ = 59907120000.

The previous prime is 60640136353. The next prime is 60640136393. The reversal of 60640136357 is 75363104606.

It is a cyclic number.

It is not a de Polignac number, because 60640136357 - 2² = 60640136353 is a prime.

It is a super-2 number, since 2×60640136357² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60640136351) 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 15 ways as a sum of consecutive naturals, for example, 28724732 + ... + 28726842.

It is an arithmetic number, because the mean of its divisors is an integer number (3836156544).

Almost surely, 2^60640136357 is an apocalyptic number.

It is an amenable number.

60640136357 is a deficient number, since it is larger than the sum of its proper divisors (738368347).

60640136357 is a wasteful number, since it uses less digits than its factorization.

60640136357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 60640136357 in words is "sixty billion, six hundred forty million, one hundred thirty-six thousand, three hundred fifty-seven".