155137247550465 has 32 divisors (see below), whose sum is σ = 269924012288640. Its totient is φ = 75768143791104.

The previous prime is 155137247550449. The next prime is 155137247550517. The reversal of 155137247550465 is 564055742731551.

It is not a de Polignac number, because 155137247550465 - 2⁴ = 155137247550449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155137247550399 and 155137247550408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8221360335 + ... + 8221379204.

It is an arithmetic number, because the mean of its divisors is an integer number (8435125384020).

Almost surely, 2^{155137247550465} is an apocalyptic number.

155137247550465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155137247550465 is a deficient number, since it is larger than the sum of its proper divisors (114786764738175).

155137247550465 is a wasteful number, since it uses less digits than its factorization.

155137247550465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16442739601.

The product of its (nonzero) digits is 88200000, while the sum is 60.

The spelling of 155137247550465 in words is "one hundred fifty-five trillion, one hundred thirty-seven billion, two hundred forty-seven million, five hundred fifty thousand, four hundred sixty-five".