146021353551 has 24 divisors (see below), whose sum is σ = 212602351104. Its totient is φ = 96571484880.

The previous prime is 146021353547. The next prime is 146021353571. The reversal of 146021353551 is 155353120641.

146021353551 is a `hidden beast` number, since 1 + 4 + 60 + 2 + 13 + 535 + 51 = 666.

It is not a de Polignac number, because 146021353551 - 2² = 146021353547 is a prime.

It is a super-2 number, since 2×146021353551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146021353501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3714340 + ... + 3753446.

It is an arithmetic number, because the mean of its divisors is an integer number (8858431296).

Almost surely, 2^146021353551 is an apocalyptic number.

146021353551 is a deficient number, since it is larger than the sum of its proper divisors (66580997553).

146021353551 is a wasteful number, since it uses less digits than its factorization.

146021353551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42411 (or 42408 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 146021353551 in words is "one hundred forty-six billion, twenty-one million, three hundred fifty-three thousand, five hundred fifty-one".