213655963496 has 8 divisors (see below), whose sum is σ = 400604931570. Its totient is φ = 106827981744.

The previous prime is 213655963487. The next prime is 213655963517. The reversal of 213655963496 is 694369556312.

It can be written as a sum of positive squares in only one way, i.e., 153518210596 + 60137752900 = 391814^2 + 245230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13353497711 + ... + 13353497726.

Almost surely, 2^213655963496 is an apocalyptic number.

It is an amenable number.

213655963496 is a deficient number, since it is larger than the sum of its proper divisors (186948968074).

213655963496 is a wasteful number, since it uses less digits than its factorization.

213655963496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26706995443 (or 26706995439 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 59.

The spelling of 213655963496 in words is "two hundred thirteen billion, six hundred fifty-five million, nine hundred sixty-three thousand, four hundred ninety-six".