161637524151 has 8 divisors (see below), whose sum is σ = 215643704304. Its totient is φ = 107694846720.

The previous prime is 161637524149. The next prime is 161637524263. The reversal of 161637524151 is 151425736161.

161637524151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161637524151 - 2¹ = 161637524149 is a prime.

It is a super-2 number, since 2×161637524151² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161637520151) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15869740 + ... + 15879921.

It is an arithmetic number, because the mean of its divisors is an integer number (26955463038).

Almost surely, 2^161637524151 is an apocalyptic number.

161637524151 is a deficient number, since it is larger than the sum of its proper divisors (54006180153).

161637524151 is a wasteful number, since it uses less digits than its factorization.

161637524151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31751361.

The product of its digits is 151200, while the sum is 42.

The spelling of 161637524151 in words is "one hundred sixty-one billion, six hundred thirty-seven million, five hundred twenty-four thousand, one hundred fifty-one".