19557214955 has 8 divisors (see below), whose sum is σ = 23479652832. Its totient is φ = 15638442048.

The previous prime is 19557214951. The next prime is 19557214969. The reversal of 19557214955 is 55941275591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19557214955 - 2² = 19557214951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19557214897 and 19557214906.

It is not an unprimeable number, because it can be changed into a prime (19557214951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904487 + ... + 925856.

It is an arithmetic number, because the mean of its divisors is an integer number (2934956604).

Almost surely, 2^19557214955 is an apocalyptic number.

19557214955 is a deficient number, since it is larger than the sum of its proper divisors (3922437877).

19557214955 is a wasteful number, since it uses less digits than its factorization.

19557214955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832485.

The product of its digits is 2835000, while the sum is 53.

The spelling of 19557214955 in words is "nineteen billion, five hundred fifty-seven million, two hundred fourteen thousand, nine hundred fifty-five".