551606605002 has 24 divisors (see below), whose sum is σ = 1195247108484. Its totient is φ = 183853566144.

The previous prime is 551606604979. The next prime is 551606605019. The reversal of 551606605002 is 200506606155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 388825826481 + 162780778521 = 623559^2 + 403461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051833 + ... + 1486460.

Almost surely, 2^551606605002 is an apocalyptic number.

551606605002 is an abundant number, since it is smaller than the sum of its proper divisors (643640503482).

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

551606605002 is a wasteful number, since it uses less digits than its factorization.

551606605002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550374 (or 2550371 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 551606605002 in words is "five hundred fifty-one billion, six hundred six million, six hundred five thousand, two".