155461554700 has 72 divisors (see below), whose sum is σ = 338408340480. Its totient is φ = 61990156800.

The previous prime is 155461554673. The next prime is 155461554707. The reversal of 155461554700 is 7455164551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155461554707) 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, 66634734 + ... + 66637066.

It is an arithmetic number, because the mean of its divisors is an integer number (4700115840).

Almost surely, 2^155461554700 is an apocalyptic number.

155461554700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155461554700 is an abundant number, since it is smaller than the sum of its proper divisors (182946785780).

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

155461554700 is a wasteful number, since it uses less digits than its factorization.

155461554700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 155461554700 in words is "one hundred fifty-five billion, four hundred sixty-one million, five hundred fifty-four thousand, seven hundred".