153553540761 has 6 divisors (see below), whose sum is σ = 221799558890. Its totient is φ = 102369027168.

The previous prime is 153553540739. The next prime is 153553540771. The reversal of 153553540761 is 167045355351.

153553540761 is a `hidden beast` number, since 1 + 5 + 3 + 5 + 535 + 40 + 76 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94329451161 + 59224089600 = 307131^2 + 243360^2 .

It is not a de Polignac number, because 153553540761 - 2²³ = 153545152153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153553540771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8530752256 + ... + 8530752273.

Almost surely, 2^153553540761 is an apocalyptic number.

It is an amenable number.

153553540761 is a deficient number, since it is larger than the sum of its proper divisors (68246018129).

153553540761 is a wasteful number, since it uses less digits than its factorization.

153553540761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17061504535 (or 17061504532 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 153553540761 in words is "one hundred fifty-three billion, five hundred fifty-three million, five hundred forty thousand, seven hundred sixty-one".