15420401420022 has 48 divisors (see below), whose sum is σ = 35745883121520. Its totient is φ = 4789770926400.

The previous prime is 15420401419991. The next prime is 15420401420027. The reversal of 15420401420022 is 22002410402451.

It is a happy number.

15420401420022 is a `hidden beast` number, since 1 + 5 + 420 + 4 + 0 + 14 + 200 + 22 = 666.

15420401420022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420401420027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369560229 + ... + 369601952.

It is an arithmetic number, because the mean of its divisors is an integer number (744705898365).

Almost surely, 2^{15420401420022} is an apocalyptic number.

15420401420022 is an abundant number, since it is smaller than the sum of its proper divisors (20325481701498).

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

15420401420022 is a wasteful number, since it uses less digits than its factorization.

15420401420022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739162269 (or 739162266 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 15420401420022 its reverse (22002410402451), we get a palindrome (37422811822473).

The spelling of 15420401420022 in words is "fifteen trillion, four hundred twenty billion, four hundred one million, four hundred twenty thousand, twenty-two".