551246895120 has 80 divisors (see below), whose sum is σ = 1798805672640. Its totient is φ = 139262372352.

The previous prime is 551246895077. The next prime is 551246895127. The reversal of 551246895120 is 21598642155.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 551246895120.

It is not an unprimeable number, because it can be changed into a prime (551246895127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60439179 + ... + 60448298.

It is an arithmetic number, because the mean of its divisors is an integer number (22485070908).

Almost surely, 2^551246895120 is an apocalyptic number.

It is an amenable number.

551246895120 is an abundant number, since it is smaller than the sum of its proper divisors (1247558777520).

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

551246895120 is a wasteful number, since it uses less digits than its factorization.

551246895120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120887512 (or 120887506 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 551246895120 in words is "five hundred fifty-one billion, two hundred forty-six million, eight hundred ninety-five thousand, one hundred twenty".