75164161215 has 96 divisors (see below), whose sum is σ = 149851376640. Its totient is φ = 31869192960.

The previous prime is 75164161181. The next prime is 75164161277. The reversal of 75164161215 is 51216146157.

It is not a de Polignac number, because 75164161215 - 2⁶ = 75164161151 is a prime.

It is a super-2 number, since 2×75164161215² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 364474 + ... + 532136.

It is an arithmetic number, because the mean of its divisors is an integer number (1560951840).

Almost surely, 2^75164161215 is an apocalyptic number.

75164161215 is a deficient number, since it is larger than the sum of its proper divisors (74687215425).

75164161215 is a wasteful number, since it uses less digits than its factorization.

75164161215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167725 (or 167714 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The spelling of 75164161215 in words is "seventy-five billion, one hundred sixty-four million, one hundred sixty-one thousand, two hundred fifteen".