161614452748 has 48 divisors (see below), whose sum is σ = 326218314240. Its totient is φ = 68623236864.

The previous prime is 161614452743. The next prime is 161614452757. The reversal of 161614452748 is 847254416161.

It is a super-2 number, since 2×161614452748² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161614452743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9366313 + ... + 9383551.

It is an arithmetic number, because the mean of its divisors is an integer number (6796214880).

Almost surely, 2^161614452748 is an apocalyptic number.

It is an amenable number.

161614452748 is an abundant number, since it is smaller than the sum of its proper divisors (164603861492).

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

161614452748 is a wasteful number, since it uses less digits than its factorization.

161614452748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20326 (or 20324 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The spelling of 161614452748 in words is "one hundred sixty-one billion, six hundred fourteen million, four hundred fifty-two thousand, seven hundred forty-eight".