146720312658 has 64 divisors (see below), whose sum is σ = 333151056000. Its totient is φ = 47846185920.

The previous prime is 146720312657. The next prime is 146720312719. The reversal of 146720312658 is 856213027641.

It is a super-2 number, since 2×146720312658² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146720312657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925393 + ... + 1072283.

It is an arithmetic number, because the mean of its divisors is an integer number (5205485250).

Almost surely, 2^146720312658 is an apocalyptic number.

146720312658 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 146720312658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166575528000).

146720312658 is an abundant number, since it is smaller than the sum of its proper divisors (186430743342).

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

146720312658 is a wasteful number, since it uses less digits than its factorization.

146720312658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147304 (or 147298 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 146720312658 in words is "one hundred forty-six billion, seven hundred twenty million, three hundred twelve thousand, six hundred fifty-eight".