145206563554 has 64 divisors (see below), whose sum is σ = 252386106336. Its totient is φ = 62061871104.

The previous prime is 145206563533. The next prime is 145206563563. The reversal of 145206563554 is 455365602541.

145206563554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 80189213329 + 65017350225 = 283177^2 + 254985^2 .

It is a super-2 number, since 2×145206563554² (a number of 23 digits) contains 22 as substring.

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, 7407414 + ... + 7426990.

Almost surely, 2^145206563554 is an apocalyptic number.

145206563554 is a deficient number, since it is larger than the sum of its proper divisors (107179542782).

145206563554 is a wasteful number, since it uses less digits than its factorization.

145206563554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19879.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 145206563554 in words is "one hundred forty-five billion, two hundred six million, five hundred sixty-three thousand, five hundred fifty-four".