2013957655940 has 24 divisors (see below), whose sum is σ = 4235003317440. Its totient is φ = 804498826208.

The previous prime is 2013957655867. The next prime is 2013957655943. The reversal of 2013957655940 is 495567593102.

It is not an unprimeable number, because it can be changed into a prime (2013957655943) 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, 67749530 + ... + 67779249.

It is an arithmetic number, because the mean of its divisors is an integer number (176458471560).

Almost surely, 2^{2013957655940} is an apocalyptic number.

2013957655940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013957655940 is an abundant number, since it is smaller than the sum of its proper divisors (2221045661500).

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

2013957655940 is a wasteful number, since it uses less digits than its factorization.

2013957655940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135529531 (or 135529529 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 56.

The spelling of 2013957655940 in words is "two trillion, thirteen billion, nine hundred fifty-seven million, six hundred fifty-five thousand, nine hundred forty".