551651353620 has 48 divisors (see below), whose sum is σ = 1544658077760. Its totient is φ = 147103762176.

The previous prime is 551651353609. The next prime is 551651353657. The reversal of 551651353620 is 26353156155.

It is a congruent number.

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, 3959259 + ... + 4096221.

It is an arithmetic number, because the mean of its divisors is an integer number (32180376620).

Almost surely, 2^551651353620 is an apocalyptic number.

It is an amenable number.

551651353620 is an abundant number, since it is smaller than the sum of its proper divisors (993006724140).

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

551651353620 is a wasteful number, since it uses less digits than its factorization.

551651353620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204104 (or 204102 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 551651353620 in words is "five hundred fifty-one billion, six hundred fifty-one million, three hundred fifty-three thousand, six hundred twenty".