76521216000 has 384 divisors, whose sum is σ = 269622924480. Its totient is φ = 19202048000.

The previous prime is 76521215989. The next prime is 76521216029. The reversal of 76521216000 is 61212567.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13053070 + ... + 13058930.

Almost surely, 2^76521216000 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 76521216000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134811462240).

76521216000 is an abundant number, since it is smaller than the sum of its proper divisors (193101708480).

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

76521216000 is a wasteful number, since it uses less digits than its factorization.

76521216000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918 (or 5888 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 76521216000 its reverse (61212567), we get a palindrome (76582428567).

The spelling of 76521216000 in words is "seventy-six billion, five hundred twenty-one million, two hundred sixteen thousand".