2540137056020 has 12 divisors (see below), whose sum is σ = 5334287817684. Its totient is φ = 1016054822400.

The previous prime is 2540137056001. The next prime is 2540137056031. The reversal of 2540137056020 is 206507310452.

It can be written as a sum of positive squares in 2 ways, for example, as 889086811396 + 1651050244624 = 942914^2 + 1284932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63503426381 + ... + 63503426420.

It is an arithmetic number, because the mean of its divisors is an integer number (444523984807).

Almost surely, 2^{2540137056020} is an apocalyptic number.

2540137056020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540137056020 is an abundant number, since it is smaller than the sum of its proper divisors (2794150761664).

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

2540137056020 is a wasteful number, since it uses less digits than its factorization.

2540137056020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127006852810 (or 127006852808 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 2540137056020 in words is "two trillion, five hundred forty billion, one hundred thirty-seven million, fifty-six thousand, twenty".