162145440452 has 6 divisors (see below), whose sum is σ = 283754520798. Its totient is φ = 81072720224.

The previous prime is 162145440451. The next prime is 162145440487. The reversal of 162145440452 is 254044541261.

It can be written as a sum of positive squares in only one way, i.e., 131149725316 + 30995715136 = 362146^2 + 176056^2 .

It is a super-2 number, since 2×162145440452² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162145440451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268180053 + ... + 20268180060.

It is an arithmetic number, because the mean of its divisors is an integer number (47292420133).

Almost surely, 2^162145440452 is an apocalyptic number.

It is an amenable number.

162145440452 is a deficient number, since it is larger than the sum of its proper divisors (121609080346).

162145440452 is a wasteful number, since it uses less digits than its factorization.

162145440452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40536360117 (or 40536360115 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 162145440452 in words is "one hundred sixty-two billion, one hundred forty-five million, four hundred forty thousand, four hundred fifty-two".