145465902648 has 128 divisors (see below), whose sum is σ = 441860832000. Its totient is φ = 43975071360.

The previous prime is 145465902623. The next prime is 145465902653. The reversal of 145465902648 is 846209564541.

It is a happy number.

145465902648 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 6 + 590 + 2 + 6 + 48 = 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 = 145465902594 and 145465902603.

It is a congruent number.

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, 922486 + ... + 1068602.

It is an arithmetic number, because the mean of its divisors is an integer number (3452037750).

Almost surely, 2^145465902648 is an apocalyptic number.

145465902648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145465902648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220930416000).

145465902648 is an abundant number, since it is smaller than the sum of its proper divisors (296394929352).

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

145465902648 is a wasteful number, since it uses less digits than its factorization.

145465902648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146562 (or 146552 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 145465902648 in words is "one hundred forty-five billion, four hundred sixty-five million, nine hundred two thousand, six hundred forty-eight".