15551351422 has 16 divisors (see below), whose sum is σ = 24532918272. Its totient is φ = 7379036280.

The previous prime is 15551351419. The next prime is 15551351483. The reversal of 15551351422 is 22415315551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325154 + ... + 1336837.

It is an arithmetic number, because the mean of its divisors is an integer number (1533307392).

Almost surely, 2^15551351422 is an apocalyptic number.

15551351422 is a deficient number, since it is larger than the sum of its proper divisors (8981566850).

15551351422 is a wasteful number, since it uses less digits than its factorization.

15551351422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662143.

The product of its digits is 30000, while the sum is 34.

Adding to 15551351422 its reverse (22415315551), we get a palindrome (37966666973).

The spelling of 15551351422 in words is "fifteen billion, five hundred fifty-one million, three hundred fifty-one thousand, four hundred twenty-two".