75146561672 has 32 divisors (see below), whose sum is σ = 173415144000. Its totient is φ = 29728309824.

The previous prime is 75146561671. The next prime is 75146561701. The reversal of 75146561672 is 27616564157.

It is a super-2 number, since 2×75146561672² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75146561672.

It is not an unprimeable number, because it can be changed into a prime (75146561671) 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, 51610922 + ... + 51612377.

It is an arithmetic number, because the mean of its divisors is an integer number (5419223250).

Almost surely, 2^75146561672 is an apocalyptic number.

It is an amenable number.

75146561672 is an abundant number, since it is smaller than the sum of its proper divisors (98268582328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75146561672 is a wasteful number, since it uses less digits than its factorization.

75146561672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103223325 (or 103223321 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The spelling of 75146561672 in words is "seventy-five billion, one hundred forty-six million, five hundred sixty-one thousand, six hundred seventy-two".