61772923066 has 8 divisors (see below), whose sum is σ = 93525360480. Its totient is φ = 30597802908.

The previous prime is 61772923039. The next prime is 61772923073. The reversal of 61772923066 is 66032927716.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144329046 + ... + 144329473.

It is an arithmetic number, because the mean of its divisors is an integer number (11690670060).

Almost surely, 2^61772923066 is an apocalyptic number.

61772923066 is a deficient number, since it is larger than the sum of its proper divisors (31752437414).

61772923066 is a wasteful number, since it uses less digits than its factorization.

61772923066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288658628.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 61772923066 in words is "sixty-one billion, seven hundred seventy-two million, nine hundred twenty-three thousand, sixty-six".