154167661541 has 16 divisors (see below), whose sum is σ = 164972723328. Its totient is φ = 143563200000.

The previous prime is 154167661537. The next prime is 154167661577. The reversal of 154167661541 is 145166761451.

It is a cyclic number.

It is not a de Polignac number, because 154167661541 - 2² = 154167661537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154167660541) 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, 524681 + ... + 763953.

It is an arithmetic number, because the mean of its divisors is an integer number (10310795208).

Almost surely, 2^154167661541 is an apocalyptic number.

It is an amenable number.

154167661541 is a deficient number, since it is larger than the sum of its proper divisors (10805061787).

154167661541 is a wasteful number, since it uses less digits than its factorization.

154167661541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239692.

The product of its digits is 604800, while the sum is 47.

The spelling of 154167661541 in words is "one hundred fifty-four billion, one hundred sixty-seven million, six hundred sixty-one thousand, five hundred forty-one".