1612450656 has 72 divisors (see below), whose sum is σ = 4826760120. Its totient is φ = 509193216.

The previous prime is 1612450621. The next prime is 1612450657. The reversal of 1612450656 is 6560542161.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1612450656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612450657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141865 + ... + 152808.

It is an arithmetic number, because the mean of its divisors is an integer number (67038335).

Almost surely, 2^1612450656 is an apocalyptic number.

1612450656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1612450656 is an abundant number, since it is smaller than the sum of its proper divisors (3214309464).

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

1612450656 is a wasteful number, since it uses less digits than its factorization.

1612450656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294708 (or 294697 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1612450656 is about 40155.3316011710. The cubic root of 1612450656 is about 1172.6330879733.

The spelling of 1612450656 in words is "one billion, six hundred twelve million, four hundred fifty thousand, six hundred fifty-six".