155775274757040 has 80 divisors (see below), whose sum is σ = 487684573127136. Its totient is φ = 41128785408000.

The previous prime is 155775274757009. The next prime is 155775274757099. The reversal of 155775274757040 is 40757472577551.

155775274757040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3213162121 + ... + 3213210600.

Almost surely, 2^{155775274757040} is an apocalyptic number.

155775274757040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155775274757040 is an abundant number, since it is smaller than the sum of its proper divisors (331909298370096).

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

155775274757040 is a wasteful number, since it uses less digits than its factorization.

155775274757040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6426372838 (or 6426372832 counting only the distinct ones).

The product of its (nonzero) digits is 336140000, while the sum is 66.

The spelling of 155775274757040 in words is "one hundred fifty-five trillion, seven hundred seventy-five billion, two hundred seventy-four million, seven hundred fifty-seven thousand, forty".