133625614661 has 16 divisors (see below), whose sum is σ = 167620259328. Its totient is φ = 103485049200.

The previous prime is 133625614643. The next prime is 133625614741. The reversal of 133625614661 is 166416526331.

It is a cyclic number.

It is not a de Polignac number, because 133625614661 - 2⁶ = 133625614597 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133625614631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5310755 + ... + 5335856.

It is an arithmetic number, because the mean of its divisors is an integer number (10476266208).

Almost surely, 2^133625614661 is an apocalyptic number.

133625614661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133625614661 is a deficient number, since it is larger than the sum of its proper divisors (33994644667).

133625614661 is a wasteful number, since it uses less digits than its factorization.

133625614661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646792.

The product of its digits is 466560, while the sum is 44.

The spelling of 133625614661 in words is "one hundred thirty-three billion, six hundred twenty-five million, six hundred fourteen thousand, six hundred sixty-one".