146772747668 has 6 divisors (see below), whose sum is σ = 256852308426. Its totient is φ = 73386373832.

The previous prime is 146772747643. The next prime is 146772747679. The reversal of 146772747668 is 866747277641.

It can be written as a sum of positive squares in only one way, i.e., 143298588304 + 3474159364 = 378548^2 + 58942^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18346593455 + ... + 18346593462.

It is an arithmetic number, because the mean of its divisors is an integer number (42808718071).

Almost surely, 2^146772747668 is an apocalyptic number.

It is an amenable number.

146772747668 is a deficient number, since it is larger than the sum of its proper divisors (110079560758).

146772747668 is a wasteful number, since it uses less digits than its factorization.

146772747668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36693186921 (or 36693186919 counting only the distinct ones).

The product of its digits is 132765696, while the sum is 65.

The spelling of 146772747668 in words is "one hundred forty-six billion, seven hundred seventy-two million, seven hundred forty-seven thousand, six hundred sixty-eight".