551501516016 has 180 divisors, whose sum is σ = 1788622619784. Its totient is φ = 157290854400.

The previous prime is 551501516011. The next prime is 551501516017. The reversal of 551501516016 is 610615105155.

It is a happy number.

551501516016 is a `hidden beast` number, since 551 + 50 + 1 + 51 + 6 + 0 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551501516011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 144595 + ... + 1060146.

Almost surely, 2^551501516016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551501516016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894311309892).

551501516016 is an abundant number, since it is smaller than the sum of its proper divisors (1237121103768).

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

551501516016 is a wasteful number, since it uses less digits than its factorization.

551501516016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204800 (or 1204774 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 551501516016 in words is "five hundred fifty-one billion, five hundred one million, five hundred sixteen thousand, sixteen".