145646623098 has 80 divisors (see below), whose sum is σ = 344508721920. Its totient is φ = 45863034624.

The previous prime is 145646623039. The next prime is 145646623127. The reversal of 145646623098 is 890326646541.

145646623098 is a `hidden beast` number, since 1 + 4 + 5 + 6 + 4 + 6 + 623 + 0 + 9 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1019511 + ... + 1153557.

It is an arithmetic number, because the mean of its divisors is an integer number (4306359024).

Almost surely, 2^145646623098 is an apocalyptic number.

145646623098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145646623098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172254360960).

145646623098 is an abundant number, since it is smaller than the sum of its proper divisors (198862098822).

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

145646623098 is a wasteful number, since it uses less digits than its factorization.

145646623098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134433 (or 134424 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 145646623098 in words is "one hundred forty-five billion, six hundred forty-six million, six hundred twenty-three thousand, ninety-eight".