15420513435530 has 16 divisors (see below), whose sum is σ = 31722199067520. Its totient is φ = 5287033177872.

The previous prime is 15420513435527. The next prime is 15420513435553. The reversal of 15420513435530 is 3553431502451.

It is a super-2 number, since 2×15420513435530² (a number of 27 digits) contains 22 as substring.

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, 110146524470 + ... + 110146524609.

It is an arithmetic number, because the mean of its divisors is an integer number (1982637441720).

Almost surely, 2^{15420513435530} is an apocalyptic number.

15420513435530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15420513435530 is an abundant number, since it is smaller than the sum of its proper divisors (16301685631990).

15420513435530 is a wasteful number, since it uses less digits than its factorization.

15420513435530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220293049093.

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 15420513435530 its reverse (3553431502451), we get a palindrome (18973944937981).

The spelling of 15420513435530 in words is "fifteen trillion, four hundred twenty billion, five hundred thirteen million, four hundred thirty-five thousand, five hundred thirty".