160152037921 has 4 divisors (see below), whose sum is σ = 169572746052. Its totient is φ = 150731329792.

The previous prime is 160152037883. The next prime is 160152037931. The reversal of 160152037921 is 129730251061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129730251061 = 1531 ⋅84735631.

It can be written as a sum of positive squares in 2 ways, for example, as 46812082321 + 113339955600 = 216361^2 + 336660^2 .

It is a cyclic number.

It is not a de Polignac number, because 160152037921 - 2¹³ = 160152029729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160152037931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4710354040 + ... + 4710354073.

It is an arithmetic number, because the mean of its divisors is an integer number (42393186513).

Almost surely, 2^160152037921 is an apocalyptic number.

It is an amenable number.

160152037921 is a deficient number, since it is larger than the sum of its proper divisors (9420708131).

160152037921 is an equidigital number, since it uses as much as digits as its factorization.

160152037921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9420708130.

The product of its (nonzero) digits is 22680, while the sum is 37.

Adding to 160152037921 its reverse (129730251061), we get a palindrome (289882288982).

The spelling of 160152037921 in words is "one hundred sixty billion, one hundred fifty-two million, thirty-seven thousand, nine hundred twenty-one".