155656061623000 has 256 divisors, whose sum is σ = 389667279830400. Its totient is φ = 57992738406400.

The previous prime is 155656061622977. The next prime is 155656061623003. The reversal of 155656061623000 is 326160656551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155656061623003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1265877522 + ... + 1266000478.

Almost surely, 2^{155656061623000} is an apocalyptic number.

155656061623000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155656061623000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194833639915200).

155656061623000 is an abundant number, since it is smaller than the sum of its proper divisors (234011218207400).

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

155656061623000 is a wasteful number, since it uses less digits than its factorization.

155656061623000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123767 (or 123753 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 155656061623000 in words is "one hundred fifty-five trillion, six hundred fifty-six billion, sixty-one million, six hundred twenty-three thousand".