551145607064 has 32 divisors (see below), whose sum is σ = 1128564692640. Its totient is φ = 250792147200.

The previous prime is 551145607031. The next prime is 551145607073. The reversal of 551145607064 is 460706541155.

It is a happy number.

It is a super-2 number, since 2×551145607064² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37312877 + ... + 37327644.

It is an arithmetic number, because the mean of its divisors is an integer number (35267646645).

Almost surely, 2^551145607064 is an apocalyptic number.

It is an amenable number.

551145607064 is an abundant number, since it is smaller than the sum of its proper divisors (577419085576).

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

551145607064 is a wasteful number, since it uses less digits than its factorization.

551145607064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74640611 (or 74640607 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 551145607064 in words is "five hundred fifty-one billion, one hundred forty-five million, six hundred seven thousand, sixty-four".