146635215661 has 8 divisors (see below), whose sum is σ = 160020376704. Its totient is φ = 133259169120.

The previous prime is 146635215659. The next prime is 146635215697. The reversal of 146635215661 is 166512536641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146635215661 - 2¹ = 146635215659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146635215631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244960 + ... + 2309353.

It is an arithmetic number, because the mean of its divisors is an integer number (20002547088).

Almost surely, 2^146635215661 is an apocalyptic number.

146635215661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146635215661 is a deficient number, since it is larger than the sum of its proper divisors (13385161043).

146635215661 is a wasteful number, since it uses less digits than its factorization.

146635215661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557251.

The product of its digits is 777600, while the sum is 46.

The spelling of 146635215661 in words is "one hundred forty-six billion, six hundred thirty-five million, two hundred fifteen thousand, six hundred sixty-one".