2116622400156 has 48 divisors (see below), whose sum is σ = 5986406791680. Its totient is φ = 641400726960.

The previous prime is 2116622400143. The next prime is 2116622400209. The reversal of 2116622400156 is 6510042266112.

2116622400156 is a `hidden beast` number, since 2 + 1 + 16 + 622 + 4 + 0 + 0 + 15 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2116622400156.

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, 890833156 + ... + 890835531.

It is an arithmetic number, because the mean of its divisors is an integer number (124716808160).

Almost surely, 2^{2116622400156} is an apocalyptic number.

It is an amenable number.

2116622400156 is an abundant number, since it is smaller than the sum of its proper divisors (3869784391524).

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

2116622400156 is a wasteful number, since it uses less digits than its factorization.

2116622400156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781668711 (or 1781668703 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 2116622400156 its reverse (6510042266112), we get a palindrome (8626664666268).

The spelling of 2116622400156 in words is "two trillion, one hundred sixteen billion, six hundred twenty-two million, four hundred thousand, one hundred fifty-six".