16312656790451 has 4 divisors (see below), whose sum is σ = 18643036331952. Its totient is φ = 13982277248952.

The previous prime is 16312656790439. The next prime is 16312656790457. The reversal of 16312656790451 is 15409765621361.

It is a happy number.

16312656790451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16312656790451 - 2²² = 16312652596147 is a prime.

It is a super-2 number, since 2×16312656790451² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16312656790457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165189770740 + ... + 1165189770753.

It is an arithmetic number, because the mean of its divisors is an integer number (4660759082988).

Almost surely, 2^{16312656790451} is an apocalyptic number.

16312656790451 is a deficient number, since it is larger than the sum of its proper divisors (2330379541501).

16312656790451 is an equidigital number, since it uses as much as digits as its factorization.

16312656790451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330379541500.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 16312656790451 in words is "sixteen trillion, three hundred twelve billion, six hundred fifty-six million, seven hundred ninety thousand, four hundred fifty-one".