36801567081 has 8 divisors (see below), whose sum is σ = 54520840160. Its totient is φ = 24534378036.

The previous prime is 36801567073. The next prime is 36801567097. The reversal of 36801567081 is 18076510863.

36801567081 is a `hidden beast` number, since 3 + 6 + 8 + 0 + 1 + 567 + 0 + 81 = 666.

It is not a de Polignac number, because 36801567081 - 2³ = 36801567073 is a prime.

It is a super-2 number, since 2×36801567081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36801567181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681510475 + ... + 681510528.

It is an arithmetic number, because the mean of its divisors is an integer number (6815105020).

Almost surely, 2^36801567081 is an apocalyptic number.

It is an amenable number.

36801567081 is a deficient number, since it is larger than the sum of its proper divisors (17719273079).

36801567081 is a wasteful number, since it uses less digits than its factorization.

36801567081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363021012 (or 1363021006 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 36801567081 in words is "thirty-six billion, eight hundred one million, five hundred sixty-seven thousand, eighty-one".