152545023661 has 4 divisors (see below), whose sum is σ = 152612137692. Its totient is φ = 152477909632.

The previous prime is 152545023557. The next prime is 152545023667. The reversal of 152545023661 is 166320545251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95438362761 + 57106660900 = 308931^2 + 238970^2 .

It is a cyclic number.

It is not a de Polignac number, because 152545023661 - 2⁹ = 152545023149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152545023667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33553606 + ... + 33558151.

It is an arithmetic number, because the mean of its divisors is an integer number (38153034423).

Almost surely, 2^152545023661 is an apocalyptic number.

It is an amenable number.

152545023661 is a deficient number, since it is larger than the sum of its proper divisors (67114031).

152545023661 is an equidigital number, since it uses as much as digits as its factorization.

152545023661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67114030.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 152545023661 in words is "one hundred fifty-two billion, five hundred forty-five million, twenty-three thousand, six hundred sixty-one".