551980640022 has 16 divisors (see below), whose sum is σ = 1261670034432. Its totient is φ = 157708754280.

The previous prime is 551980639993. The next prime is 551980640033. The reversal of 551980640022 is 220046089155.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 13142396191 = 551980640022 / (5 + 5 + 1 + 9 + 8 + 0 + 6 + 4 + 0 + 0 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6571198054 + ... + 6571198137.

It is an arithmetic number, because the mean of its divisors is an integer number (78854377152).

Almost surely, 2^551980640022 is an apocalyptic number.

551980640022 is an abundant number, since it is smaller than the sum of its proper divisors (709689394410).

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

551980640022 is a wasteful number, since it uses less digits than its factorization.

551980640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13142396203.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 551980640022 in words is "five hundred fifty-one billion, nine hundred eighty million, six hundred forty thousand, twenty-two".