1521116802 has 12 divisors (see below), whose sum is σ = 3295753110. Its totient is φ = 507038928.

The previous prime is 1521116783. The next prime is 1521116867. The reversal of 1521116802 is 2086111251.

It can be written as a sum of positive squares in only one way, i.e., 1306171881 + 214944921 = 36141^2 + 14661^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42253227 + ... + 42253262.

Almost surely, 2^1521116802 is an apocalyptic number.

1521116802 is an abundant number, since it is smaller than the sum of its proper divisors (1774636308).

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

1521116802 is a wasteful number, since it uses less digits than its factorization.

1521116802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84506497 (or 84506494 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1521116802 is about 39001.4974327910. The cubic root of 1521116802 is about 1150.0609424541.

The spelling of 1521116802 in words is "one billion, five hundred twenty-one million, one hundred sixteen thousand, eight hundred two".