2161337236252 has 6 divisors (see below), whose sum is σ = 3782340163448. Its totient is φ = 1080668618124.

The previous prime is 2161337236249. The next prime is 2161337236271. The reversal of 2161337236252 is 2526327331612.

It is a junction number, because it is equal to n+sod(n) for n = 2161337236199 and 2161337236208.

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, 270167154528 + ... + 270167154535.

Almost surely, 2^{2161337236252} is an apocalyptic number.

It is an amenable number.

2161337236252 is a deficient number, since it is larger than the sum of its proper divisors (1621002927196).

2161337236252 is a wasteful number, since it uses less digits than its factorization.

2161337236252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540334309067 (or 540334309065 counting only the distinct ones).

The product of its digits is 544320, while the sum is 43.

The spelling of 2161337236252 in words is "two trillion, one hundred sixty-one billion, three hundred thirty-seven million, two hundred thirty-six thousand, two hundred fifty-two".