2156553403413 has 16 divisors (see below), whose sum is σ = 2944518969600. Its totient is φ = 1403554014720.

The previous prime is 2156553403399. The next prime is 2156553403429. The reversal of 2156553403413 is 3143043556512.

It is a happy number.

It is not a de Polignac number, because 2156553403413 - 2⁸ = 2156553403157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156553402413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51099028 + ... + 51141213.

It is an arithmetic number, because the mean of its divisors is an integer number (184032435600).

Almost surely, 2^{2156553403413} is an apocalyptic number.

It is an amenable number.

2156553403413 is a deficient number, since it is larger than the sum of its proper divisors (787965566187).

2156553403413 is a wasteful number, since it uses less digits than its factorization.

2156553403413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102240412.

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 2156553403413 its reverse (3143043556512), we get a palindrome (5299596959925).

The spelling of 2156553403413 in words is "two trillion, one hundred fifty-six billion, five hundred fifty-three million, four hundred three thousand, four hundred thirteen".