72070170115331 has 16 divisors (see below), whose sum is σ = 74973276000000. Its totient is φ = 69194940778656.

The previous prime is 72070170115303. The next prime is 72070170115367. The reversal of 72070170115331 is 13351107107027.

It is a cyclic number.

It is not a de Polignac number, because 72070170115331 - 2⁴² = 67672123604227 is a prime.

It is a super-2 number, since 2×72070170115331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72070170115631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381231170 + ... + 381420168.

It is an arithmetic number, because the mean of its divisors is an integer number (4685829750000).

Almost surely, 2^{72070170115331} is an apocalyptic number.

72070170115331 is a deficient number, since it is larger than the sum of its proper divisors (2903105884669).

72070170115331 is a wasteful number, since it uses less digits than its factorization.

72070170115331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262666.

The product of its (nonzero) digits is 30870, while the sum is 38.

The spelling of 72070170115331 in words is "seventy-two trillion, seventy billion, one hundred seventy million, one hundred fifteen thousand, three hundred thirty-one".