64501575173042 has 16 divisors (see below), whose sum is σ = 113271058841472. Its totient is φ = 26969299723680.

The previous prime is 64501575173041. The next prime is 64501575173051. The reversal of 64501575173042 is 24037157510546.

It is a super-2 number, since 2×64501575173042² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64501575173041) 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, 56186040518 + ... + 56186041665.

It is an arithmetic number, because the mean of its divisors is an integer number (7079441177592).

Almost surely, 2^{64501575173042} is an apocalyptic number.

64501575173042 is a deficient number, since it is larger than the sum of its proper divisors (48769483668430).

64501575173042 is a wasteful number, since it uses less digits than its factorization.

64501575173042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112372082233.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 64501575173042 in words is "sixty-four trillion, five hundred one billion, five hundred seventy-five million, one hundred seventy-three thousand, forty-two".