145622556648 has 64 divisors (see below), whose sum is σ = 428301648000. Its totient is φ = 45685506816.

The previous prime is 145622556641. The next prime is 145622556679. The reversal of 145622556648 is 846655226541.

145622556648 is a `hidden beast` number, since 1 + 4 + 5 + 6 + 22 + 556 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 145622556594 and 145622556603.

It is not an unprimeable number, because it can be changed into a prime (145622556641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19825108 + ... + 19832451.

It is an arithmetic number, because the mean of its divisors is an integer number (6692213250).

Almost surely, 2^145622556648 is an apocalyptic number.

145622556648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145622556648 is an abundant number, since it is smaller than the sum of its proper divisors (282679091352).

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

145622556648 is a wasteful number, since it uses less digits than its factorization.

145622556648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39657591 (or 39657581 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 145622556648 in words is "one hundred forty-five billion, six hundred twenty-two million, five hundred fifty-six thousand, six hundred forty-eight".