161651153135 has 8 divisors (see below), whose sum is σ = 193986693936. Its totient is φ = 129317382400.

The previous prime is 161651153129. The next prime is 161651153143. The reversal of 161651153135 is 531351156161.

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

It is not a de Polignac number, because 161651153135 - 2⁴ = 161651153119 is a prime.

It is a super-2 number, since 2×161651153135² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232541 + ... + 614310.

It is an arithmetic number, because the mean of its divisors is an integer number (24248336742).

Almost surely, 2^161651153135 is an apocalyptic number.

161651153135 is a deficient number, since it is larger than the sum of its proper divisors (32335540801).

161651153135 is an equidigital number, since it uses as much as digits as its factorization.

161651153135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885033.

The product of its digits is 40500, while the sum is 38.

The spelling of 161651153135 in words is "one hundred sixty-one billion, six hundred fifty-one million, one hundred fifty-three thousand, one hundred thirty-five".