16245570440 has 32 divisors (see below), whose sum is σ = 39875492160. Its totient is φ = 5907480000.

The previous prime is 16245570431. The next prime is 16245570443. The reversal of 16245570440 is 4407554261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16245570394 and 16245570403.

It is not an unprimeable number, because it can be changed into a prime (16245570443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18460436 + ... + 18461315.

It is an arithmetic number, because the mean of its divisors is an integer number (1246109130).

Almost surely, 2^16245570440 is an apocalyptic number.

16245570440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16245570440 is an abundant number, since it is smaller than the sum of its proper divisors (23629921720).

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

16245570440 is a wasteful number, since it uses less digits than its factorization.

16245570440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36921773 (or 36921769 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 38.

It can be divided in two parts, 16245 and 570440, that added together give a palindrome (586685).

The spelling of 16245570440 in words is "sixteen billion, two hundred forty-five million, five hundred seventy thousand, four hundred forty".