2156010770451 has 8 divisors (see below), whose sum is σ = 2878841205184. Its totient is φ = 1435260424680.

The previous prime is 2156010770377. The next prime is 2156010770467. The reversal of 2156010770451 is 1540770106512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2156010770451 - 2⁷ = 2156010770323 is a prime.

It is a super-2 number, since 2×2156010770451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156010770051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520019821 + ... + 520023966.

It is an arithmetic number, because the mean of its divisors is an integer number (359855150648).

Almost surely, 2^{2156010770451} is an apocalyptic number.

2156010770451 is a deficient number, since it is larger than the sum of its proper divisors (722830434733).

2156010770451 is a wasteful number, since it uses less digits than its factorization.

2156010770451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040044481.

The product of its (nonzero) digits is 58800, while the sum is 39.

Adding to 2156010770451 its reverse (1540770106512), we get a palindrome (3696780876963).

The spelling of 2156010770451 in words is "two trillion, one hundred fifty-six billion, ten million, seven hundred seventy thousand, four hundred fifty-one".