155394314780 has 48 divisors (see below), whose sum is σ = 330547803264. Its totient is φ = 61355273280.

The previous prime is 155394314767. The next prime is 155394314783. The reversal of 155394314780 is 87413493551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155394314783) 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, 1890335 + ... + 1970825.

It is an arithmetic number, because the mean of its divisors is an integer number (6886412568).

Almost surely, 2^155394314780 is an apocalyptic number.

155394314780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155394314780 is an abundant number, since it is smaller than the sum of its proper divisors (175153488484).

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

155394314780 is a wasteful number, since it uses less digits than its factorization.

155394314780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81746 (or 81744 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 155394314780 in words is "one hundred fifty-five billion, three hundred ninety-four million, three hundred fourteen thousand, seven hundred eighty".