61242675164 has 24 divisors (see below), whose sum is σ = 116990996976. Its totient is φ = 27820160000.

The previous prime is 61242675163. The next prime is 61242675181. The reversal of 61242675164 is 46157624216.

61242675164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61242675164² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242675163) 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, 364247 + ... + 505134.

It is an arithmetic number, because the mean of its divisors is an integer number (4874624874).

Almost surely, 2^61242675164 is an apocalyptic number.

It is an amenable number.

61242675164 is a deficient number, since it is larger than the sum of its proper divisors (55748321812).

61242675164 is a wasteful number, since it uses less digits than its factorization.

61242675164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870997 (or 870995 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The spelling of 61242675164 in words is "sixty-one billion, two hundred forty-two million, six hundred seventy-five thousand, one hundred sixty-four".