145263656196 has 18 divisors (see below), whose sum is σ = 367194242142. Its totient is φ = 48421218720.

The previous prime is 145263656189. The next prime is 145263656207. The reversal of 145263656196 is 691656362541.

145263656196 is a `hidden beast` number, since 1 + 45 + 2 + 6 + 36 + 561 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132995878596 + 12267777600 = 364686^2 + 110760^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×145263656196² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2017550745 + ... + 2017550816.

It is an arithmetic number, because the mean of its divisors is an integer number (20399680119).

Almost surely, 2^145263656196 is an apocalyptic number.

It is an amenable number.

145263656196 is an abundant number, since it is smaller than the sum of its proper divisors (221930585946).

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

145263656196 is a wasteful number, since it uses less digits than its factorization.

145263656196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035101571 (or 4035101566 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 145263656196 in words is "one hundred forty-five billion, two hundred sixty-three million, six hundred fifty-six thousand, one hundred ninety-six".