2541505001660 has 36 divisors (see below), whose sum is σ = 5632848082008. Its totient is φ = 963096629472.

The previous prime is 2541505001647. The next prime is 2541505001719. The reversal of 2541505001660 is 661005051452.

It is a self number, because there is not a number n which added to its sum of digits gives 2541505001660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175997282 + ... + 176011721.

It is an arithmetic number, because the mean of its divisors is an integer number (156468002278).

Almost surely, 2^{2541505001660} is an apocalyptic number.

2541505001660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2541505001660 is an abundant number, since it is smaller than the sum of its proper divisors (3091343080348).

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

2541505001660 is a wasteful number, since it uses less digits than its factorization.

2541505001660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352009050 (or 352009029 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 2541505001660 in words is "two trillion, five hundred forty-one billion, five hundred five million, one thousand, six hundred sixty".