15640401030 has 64 divisors (see below), whose sum is σ = 40590720000. Its totient is φ = 3841908224.

The previous prime is 15640401001. The next prime is 15640401031. The reversal of 15640401030 is 3010404651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15640401031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302280 + ... + 350219.

It is an arithmetic number, because the mean of its divisors is an integer number (634230000).

Almost surely, 2^15640401030 is an apocalyptic number.

15640401030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15640401030 is an abundant number, since it is smaller than the sum of its proper divisors (24950318970).

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

15640401030 is a wasteful number, since it uses less digits than its factorization.

15640401030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652573.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 15640401030 its reverse (3010404651), we get a palindrome (18650805681).

The spelling of 15640401030 in words is "fifteen billion, six hundred forty million, four hundred one thousand, thirty".