2156010770452 has 48 divisors (see below), whose sum is σ = 4704137488512. Its totient is φ = 839983841280.

The previous prime is 2156010770377. The next prime is 2156010770467. The reversal of 2156010770452 is 2540770106512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21791848 + ... + 21890560.

It is an arithmetic number, because the mean of its divisors is an integer number (98002864344).

Almost surely, 2^{2156010770452} is an apocalyptic number.

2156010770452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2156010770452 is an abundant number, since it is smaller than the sum of its proper divisors (2548126718060).

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

2156010770452 is a wasteful number, since it uses less digits than its factorization.

2156010770452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169648 (or 169646 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

Adding to 2156010770452 its reverse (2540770106512), we get a palindrome (4696780876964).

The spelling of 2156010770452 in words is "two trillion, one hundred fifty-six billion, ten million, seven hundred seventy thousand, four hundred fifty-two".