155055666546 has 48 divisors (see below), whose sum is σ = 368542755360. Its totient is φ = 46724060160.

The previous prime is 155055666541. The next prime is 155055666547. The reversal of 155055666546 is 645666550551.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155055666492 and 155055666501.

It is not an unprimeable number, because it can be changed into a prime (155055666541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2152015 + ... + 2222898.

It is an arithmetic number, because the mean of its divisors is an integer number (7677974070).

Almost surely, 2^155055666546 is an apocalyptic number.

155055666546 is an abundant number, since it is smaller than the sum of its proper divisors (213487088814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155055666546 is a wasteful number, since it uses less digits than its factorization.

155055666546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375111 (or 4375108 counting only the distinct ones).

The product of its (nonzero) digits is 16200000, while the sum is 54.

The spelling of 155055666546 in words is "one hundred fifty-five billion, fifty-five million, six hundred sixty-six thousand, five hundred forty-six".