72775565507046 has 16 divisors (see below), whose sum is σ = 145554766910064. Its totient is φ = 24257915853024.

The previous prime is 72775565507011. The next prime is 72775565507101. The reversal of 72775565507046 is 64070556557727.

It is a super-2 number, since 2×72775565507046² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 151235425 + ... + 151715868.

It is an arithmetic number, because the mean of its divisors is an integer number (9097172931879).

Almost surely, 2^{72775565507046} is an apocalyptic number.

72775565507046 is an abundant number, since it is smaller than the sum of its proper divisors (72779201403018).

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

72775565507046 is a wasteful number, since it uses less digits than its factorization.

72775565507046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302991335.

The product of its (nonzero) digits is 432180000, while the sum is 66.

The spelling of 72775565507046 in words is "seventy-two trillion, seven hundred seventy-five billion, five hundred sixty-five million, five hundred seven thousand, forty-six".