155154637722461 has 16 divisors (see below), whose sum is σ = 167413101920064. Its totient is φ = 142942443081984.

The previous prime is 155154637722433. The next prime is 155154637722503. The reversal of 155154637722461 is 164227736451551.

It is not a de Polignac number, because 155154637722461 - 2³⁴ = 155137457853277 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 155154637722461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155154637722401) 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, 65125685 + ... + 67466021.

It is an arithmetic number, because the mean of its divisors is an integer number (10463318870004).

Almost surely, 2^{155154637722461} is an apocalyptic number.

It is an amenable number.

155154637722461 is a deficient number, since it is larger than the sum of its proper divisors (12258464197603).

155154637722461 is a wasteful number, since it uses less digits than its factorization.

155154637722461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350220.

The product of its digits is 42336000, while the sum is 59.

The spelling of 155154637722461 in words is "one hundred fifty-five trillion, one hundred fifty-four billion, six hundred thirty-seven million, seven hundred twenty-two thousand, four hundred sixty-one".