155040145656050 has 24 divisors (see below), whose sum is σ = 288375564640116. Its totient is φ = 62015866064640.

The previous prime is 155040145656031. The next prime is 155040145656079. The reversal of 155040145656050 is 50656541040551.

It can be written as a sum of positive squares in 6 ways, for example, as 96795118079401 + 58245027576649 = 9838451^2 + 7631843^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155040145655986 and 155040145656004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12077054 + ... + 21352646.

Almost surely, 2^{155040145656050} is an apocalyptic number.

155040145656050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155040145656050 is a deficient number, since it is larger than the sum of its proper divisors (133335418984066).

155040145656050 is a wasteful number, since it uses less digits than its factorization.

155040145656050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9609902 (or 9609897 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 155040145656050 in words is "one hundred fifty-five trillion, forty billion, one hundred forty-five million, six hundred fifty-six thousand, fifty".