15551356622 has 4 divisors (see below), whose sum is σ = 23327034936. Its totient is φ = 7775678310.

The previous prime is 15551356609. The next prime is 15551356631. The reversal of 15551356622 is 22665315551.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15551356622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3887839154 + ... + 3887839157.

It is an arithmetic number, because the mean of its divisors is an integer number (5831758734).

Almost surely, 2^15551356622 is an apocalyptic number.

15551356622 is a deficient number, since it is larger than the sum of its proper divisors (7775678314).

15551356622 is an equidigital number, since it uses as much as digits as its factorization.

15551356622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775678313.

The product of its digits is 270000, while the sum is 41.

The spelling of 15551356622 in words is "fifteen billion, five hundred fifty-one million, three hundred fifty-six thousand, six hundred twenty-two".