132661654561551 has 8 divisors (see below), whose sum is σ = 180219606197040. Its totient is φ = 86772402983552.

The previous prime is 132661654561511. The next prime is 132661654561573. The reversal of 132661654561551 is 155165456166231.

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

It is a cyclic number.

It is not a de Polignac number, because 132661654561551 - 2¹⁵ = 132661654528783 is a prime.

It is a super-2 number, since 2×132661654561551² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132661654561491 and 132661654561500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132661654561511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417175014186 + ... + 417175014503.

It is an arithmetic number, because the mean of its divisors is an integer number (22527450774630).

Almost surely, 2^{132661654561551} is an apocalyptic number.

132661654561551 is a deficient number, since it is larger than the sum of its proper divisors (47557951635489).

132661654561551 is an equidigital number, since it uses as much as digits as its factorization.

132661654561551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834350028745.

The product of its digits is 19440000, while the sum is 57.

The spelling of 132661654561551 in words is "one hundred thirty-two trillion, six hundred sixty-one billion, six hundred fifty-four million, five hundred sixty-one thousand, five hundred fifty-one".