73161222615 has 48 divisors (see below), whose sum is σ = 136619595840. Its totient is φ = 36004124160.

The previous prime is 73161222571. The next prime is 73161222619. The reversal of 73161222615 is 51622216137.

73161222615 is a `hidden beast` number, since 7 + 3 + 1 + 6 + 12 + 22 + 615 = 666.

It is not a de Polignac number, because 73161222615 - 2⁷ = 73161222487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73161222615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73161222619) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1610331 + ... + 1655139.

It is an arithmetic number, because the mean of its divisors is an integer number (2846241580).

Almost surely, 2^73161222615 is an apocalyptic number.

73161222615 is a deficient number, since it is larger than the sum of its proper divisors (63458373225).

73161222615 is a wasteful number, since it uses less digits than its factorization.

73161222615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47624 (or 47621 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The spelling of 73161222615 in words is "seventy-three billion, one hundred sixty-one million, two hundred twenty-two thousand, six hundred fifteen".