72167254162706 has 16 divisors (see below), whose sum is σ = 110885311351584. Its totient is φ = 35207255950944.

The previous prime is 72167254162693. The next prime is 72167254162711. The reversal of 72167254162706 is 60726145276127.

It is a happy number.

It is a super-2 number, since 2×72167254162706² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442977755 + ... + 443140638.

It is an arithmetic number, because the mean of its divisors is an integer number (6930331959474).

Almost surely, 2^{72167254162706} is an apocalyptic number.

72167254162706 is a deficient number, since it is larger than the sum of its proper divisors (38718057188878).

72167254162706 is a wasteful number, since it uses less digits than its factorization.

72167254162706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886119385.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 72167254162706 in words is "seventy-two trillion, one hundred sixty-seven billion, two hundred fifty-four million, one hundred sixty-two thousand, seven hundred six".