146173699980 has 1728 divisors, whose sum is σ = 651369019392. Its totient is φ = 26605117440.

The previous prime is 146173699961. The next prime is 146173700021. The reversal of 146173699980 is 89996371641.

146173699980 is a `hidden beast` number, since 1 + 4 + 617 + 3 + 6 + 9 + 9 + 9 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 3950640522 + ... + 3950640558.

It is an arithmetic number, because the mean of its divisors is an integer number (376949664).

Almost surely, 2^146173699980 is an apocalyptic number.

146173699980 is a gapful number since it is divisible by the number (10) 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 146173699980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325684509696).

146173699980 is an abundant number, since it is smaller than the sum of its proper divisors (505195319412).

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

146173699980 is a wasteful number, since it uses less digits than its factorization.

146173699980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 146173699980 in words is "one hundred forty-six billion, one hundred seventy-three million, six hundred ninety-nine thousand, nine hundred eighty".