651254452156 has 96 divisors (see below), whose sum is σ = 1449260854272. Its totient is φ = 248684567040.

The previous prime is 651254452153. The next prime is 651254452159.

651254452156 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (651254452153) and next prime (651254452159).

It is a super-2 number, since 2×651254452156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651254452153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15764680 + ... + 15805936.

It is an arithmetic number, because the mean of its divisors is an integer number (15096467232).

Almost surely, 2^651254452156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651254452156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (724630427136).

651254452156 is an abundant number, since it is smaller than the sum of its proper divisors (798006402116).

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

651254452156 is a wasteful number, since it uses less digits than its factorization.

651254452156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42299 (or 42297 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 46.

The spelling of 651254452156 in words is "six hundred fifty-one billion, two hundred fifty-four million, four hundred fifty-two thousand, one hundred fifty-six".