2154353709660 has 48 divisors (see below), whose sum is σ = 6122223090816. Its totient is φ = 565919779392.

The previous prime is 2154353709659. The next prime is 2154353709691. The reversal of 2154353709660 is 669073534512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267950422 + ... + 267958461.

It is an arithmetic number, because the mean of its divisors is an integer number (127546314392).

Almost surely, 2^{2154353709660} is an apocalyptic number.

2154353709660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154353709660 is an abundant number, since it is smaller than the sum of its proper divisors (3967869381156).

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

2154353709660 is a wasteful number, since it uses less digits than its factorization.

2154353709660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535908962 (or 535908960 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 2154353709660 in words is "two trillion, one hundred fifty-four billion, three hundred fifty-three million, seven hundred nine thousand, six hundred sixty".