146477640186 has 24 divisors (see below), whose sum is σ = 317375394804. Its totient is φ = 48824776320.

The previous prime is 146477640167. The next prime is 146477640191. The reversal of 146477640186 is 681046774641.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135879967161 + 10597673025 = 368619^2 + 102945^2 .

It is a super-2 number, since 2×146477640186² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277410 + ... + 1387346.

Almost surely, 2^146477640186 is an apocalyptic number.

146477640186 is an abundant number, since it is smaller than the sum of its proper divisors (170897754618).

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

146477640186 is a wasteful number, since it uses less digits than its factorization.

146477640186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183966 (or 183963 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 146477640186 in words is "one hundred forty-six billion, four hundred seventy-seven million, six hundred forty thousand, one hundred eighty-six".