15220434040556 has 24 divisors (see below), whose sum is σ = 26891808995520. Its totient is φ = 7537097698832.

The previous prime is 15220434040547. The next prime is 15220434040571. The reversal of 15220434040556 is 65504043402251.

It is a super-2 number, since 2×15220434040556² (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, 3087770 + ... + 6322593.

It is an arithmetic number, because the mean of its divisors is an integer number (1120492041480).

Almost surely, 2^{15220434040556} is an apocalyptic number.

It is an amenable number.

15220434040556 is a deficient number, since it is larger than the sum of its proper divisors (11671374954964).

15220434040556 is a wasteful number, since it uses less digits than its factorization.

15220434040556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414253 (or 9414251 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 15220434040556 in words is "fifteen trillion, two hundred twenty billion, four hundred thirty-four million, forty thousand, five hundred fifty-six".