161074372437 has 48 divisors (see below), whose sum is σ = 257866053120. Its totient is φ = 96065402400.

The previous prime is 161074372423. The next prime is 161074372451. The reversal of 161074372437 is 734273470161.

It is a happy number.

161074372437 is a `hidden beast` number, since 1 + 6 + 107 + 43 + 72 + 437 = 666.

It is an interprime number because it is at equal distance from previous prime (161074372423) and next prime (161074372451).

It is not a de Polignac number, because 161074372437 - 2⁶ = 161074372373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161074372392 and 161074372401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161074372637) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6747112 + ... + 6770942.

It is an arithmetic number, because the mean of its divisors is an integer number (5372209440).

Almost surely, 2^161074372437 is an apocalyptic number.

It is an amenable number.

161074372437 is a deficient number, since it is larger than the sum of its proper divisors (96791680683).

161074372437 is a wasteful number, since it uses less digits than its factorization.

161074372437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24934 (or 24931 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 161074372437 in words is "one hundred sixty-one billion, seventy-four million, three hundred seventy-two thousand, four hundred thirty-seven".