153661520146 has 8 divisors (see below), whose sum is σ = 236721801420. Its totient is φ = 74754253008.

The previous prime is 153661520143. The next prime is 153661520197. The reversal of 153661520146 is 641025166351.

It is a happy number.

153661520146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 153006927921 + 654592225 = 391161^2 + 25585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×153661520146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 153661520099 and 153661520108.

It is not an unprimeable number, because it can be changed into a prime (153661520141) 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, 1038253441 + ... + 1038253588.

Almost surely, 2^153661520146 is an apocalyptic number.

153661520146 is a deficient number, since it is larger than the sum of its proper divisors (83060281274).

153661520146 is a wasteful number, since it uses less digits than its factorization.

153661520146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076507068.

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 153661520146 its reverse (641025166351), we get a palindrome (794686686497).

The spelling of 153661520146 in words is "one hundred fifty-three billion, six hundred sixty-one million, five hundred twenty thousand, one hundred forty-six".