213540754161996 has 36 divisors (see below), whose sum is σ = 554372318240832. Its totient is φ = 69256460808864.

The previous prime is 213540754161971. The next prime is 213540754162103. The reversal of 213540754161996 is 699161457045312.

213540754161996 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 4 + 0 + 7 + 5 + 4 + 1 + 619 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80157939420 + ... + 80157942083.

Almost surely, 2^{213540754161996} is an apocalyptic number.

It is an amenable number.

213540754161996 is an abundant number, since it is smaller than the sum of its proper divisors (340831564078836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213540754161996 is a wasteful number, since it uses less digits than its factorization.

213540754161996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160315881550 (or 160315881545 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 63.

The spelling of 213540754161996 in words is "two hundred thirteen trillion, five hundred forty billion, seven hundred fifty-four million, one hundred sixty-one thousand, nine hundred ninety-six".