61085371057722 has 64 divisors (see below), whose sum is σ = 149028969571200. Its totient is φ = 18392815808640.

The previous prime is 61085371057651. The next prime is 61085371057769. The reversal of 61085371057722 is 22775017358016.

61085371057722 is a `hidden beast` number, since 6 + 1 + 0 + 8 + 5 + 37 + 10 + 577 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327414147 + ... + 327600662.

It is an arithmetic number, because the mean of its divisors is an integer number (2328577649550).

Almost surely, 2^{61085371057722} is an apocalyptic number.

61085371057722 is an abundant number, since it is smaller than the sum of its proper divisors (87943598513478).

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

61085371057722 is a wasteful number, since it uses less digits than its factorization.

61085371057722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655014988 (or 655014982 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 61085371057722 in words is "sixty-one trillion, eighty-five billion, three hundred seventy-one million, fifty-seven thousand, seven hundred twenty-two".