11137765401 has 72 divisors (see below), whose sum is σ = 19766185920. Its totient is φ = 5901584832.

The previous prime is 11137765393. The next prime is 11137765411. The reversal of 11137765401 is 10456773111.

It is a happy number.

11137765401 is a `hidden beast` number, since 1 + 11 + 37 + 76 + 540 + 1 = 666.

11137765401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11137765401 - 2³ = 11137765393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11137765411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26581570 + ... + 26581988.

It is an arithmetic number, because the mean of its divisors is an integer number (274530360).

Almost surely, 2^11137765401 is an apocalyptic number.

It is an amenable number.

11137765401 is a deficient number, since it is larger than the sum of its proper divisors (8628420519).

11137765401 is an equidigital number, since it uses as much as digits as its factorization.

11137765401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 11137765401 in words is "eleven billion, one hundred thirty-seven million, seven hundred sixty-five thousand, four hundred one".