18670697355 has 32 divisors (see below), whose sum is σ = 31879471104. Its totient is φ = 9298146816.

The previous prime is 18670697347. The next prime is 18670697387. The reversal of 18670697355 is 55379607681.

It is not a de Polignac number, because 18670697355 - 2³ = 18670697347 is a prime.

It is a super-3 number, since 3×18670697355³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18670697295 and 18670697304.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255877 + ... + 320646.

It is an arithmetic number, because the mean of its divisors is an integer number (996233472).

Almost surely, 2^18670697355 is an apocalyptic number.

18670697355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18670697355 is a deficient number, since it is larger than the sum of its proper divisors (13208773749).

18670697355 is a wasteful number, since it uses less digits than its factorization.

18670697355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576675.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 18670697355 in words is "eighteen billion, six hundred seventy million, six hundred ninety-seven thousand, three hundred fifty-five".