13557031202620 has 48 divisors (see below), whose sum is σ = 28686794572800. Its totient is φ = 5381506843200.

The previous prime is 13557031202563. The next prime is 13557031202633. The reversal of 13557031202620 is 2620213075531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13557031202620.

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, 5498641 + ... + 7572919.

It is an arithmetic number, because the mean of its divisors is an integer number (597641553600).

Almost surely, 2^{13557031202620} is an apocalyptic number.

13557031202620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13557031202620 is an abundant number, since it is smaller than the sum of its proper divisors (15129763370180).

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

13557031202620 is a wasteful number, since it uses less digits than its factorization.

13557031202620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076778 (or 2076776 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 13557031202620 in words is "thirteen trillion, five hundred fifty-seven billion, thirty-one million, two hundred two thousand, six hundred twenty".