2016561432 has 32 divisors (see below), whose sum is σ = 5260596480. Its totient is φ = 642961440.

The previous prime is 2016561397. The next prime is 2016561467. The reversal of 2016561432 is 2341656102.

It is an interprime number because it is at equal distance from previous prime (2016561397) and next prime (2016561467).

It is a self number, because there is not a number n which added to its sum of digits gives 2016561432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1826044 + ... + 1827147.

It is an arithmetic number, because the mean of its divisors is an integer number (164393640).

Almost surely, 2^2016561432 is an apocalyptic number.

It is an amenable number.

2016561432 is an abundant number, since it is smaller than the sum of its proper divisors (3244035048).

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

2016561432 is a wasteful number, since it uses less digits than its factorization.

2016561432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653223 (or 3653219 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2016561432 is about 44906.1402483001. The cubic root of 2016561432 is about 1263.3891773772.

The spelling of 2016561432 in words is "two billion, sixteen million, five hundred sixty-one thousand, four hundred thirty-two".