155025783465 has 64 divisors (see below), whose sum is σ = 295922073600. Its totient is φ = 67759870464.

The previous prime is 155025783463. The next prime is 155025783503. The reversal of 155025783465 is 564387520551.

It is not a de Polignac number, because 155025783465 - 2¹ = 155025783463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155025783463) 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, 6554581 + ... + 6578189.

It is an arithmetic number, because the mean of its divisors is an integer number (4623782400).

Almost surely, 2^155025783465 is an apocalyptic number.

155025783465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155025783465 is a deficient number, since it is larger than the sum of its proper divisors (140896290135).

155025783465 is a wasteful number, since it uses less digits than its factorization.

155025783465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26366.

The product of its (nonzero) digits is 5040000, while the sum is 51.

The spelling of 155025783465 in words is "one hundred fifty-five billion, twenty-five million, seven hundred eighty-three thousand, four hundred sixty-five".