154216555364661 has 8 divisors (see below), whose sum is σ = 207002087738400. Its totient is φ = 102121029950352.

The previous prime is 154216555364629. The next prime is 154216555364681. The reversal of 154216555364661 is 166463555612451.

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

It is not a de Polignac number, because 154216555364661 - 2⁵ = 154216555364629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154216555364595 and 154216555364604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154216555364681) 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, 172501739335 + ... + 172501740228.

It is an arithmetic number, because the mean of its divisors is an integer number (25875260967300).

Almost surely, 2^{154216555364661} is an apocalyptic number.

It is an amenable number.

154216555364661 is a deficient number, since it is larger than the sum of its proper divisors (52785532373739).

154216555364661 is a wasteful number, since it uses less digits than its factorization.

154216555364661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345003479715.

The product of its digits is 77760000, while the sum is 60.

The spelling of 154216555364661 in words is "one hundred fifty-four trillion, two hundred sixteen billion, five hundred fifty-five million, three hundred sixty-four thousand, six hundred sixty-one".