651243342156 has 48 divisors (see below), whose sum is σ = 1662084359040. Its totient is φ = 196825749120.

The previous prime is 651243342103. The next prime is 651243342209.

651243342156 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (651243342103) and next prime (651243342209).

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, 6458761 + ... + 6558816.

It is an arithmetic number, because the mean of its divisors is an integer number (34626757480).

Almost surely, 2^651243342156 is an apocalyptic number.

651243342156 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

651243342156 is an abundant number, since it is smaller than the sum of its proper divisors (1010841016884).

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

651243342156 is a wasteful number, since it uses less digits than its factorization.

651243342156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13017974 (or 13017972 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

It can be divided in two parts, 651243 and 342156, that added together give a palindrome (993399).

The spelling of 651243342156 in words is "six hundred fifty-one billion, two hundred forty-three million, three hundred forty-two thousand, one hundred fifty-six".