161064651652 has 6 divisors (see below), whose sum is σ = 281863140398. Its totient is φ = 80532325824.

The previous prime is 161064651577. The next prime is 161064651653. The reversal of 161064651652 is 256156460161.

It can be written as a sum of positive squares in only one way, i.e., 160693549956 + 371101696 = 400866^2 + 19264^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161064651599 and 161064651608.

It is not an unprimeable number, because it can be changed into a prime (161064651653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20133081453 + ... + 20133081460.

Almost surely, 2^161064651652 is an apocalyptic number.

It is an amenable number.

161064651652 is a deficient number, since it is larger than the sum of its proper divisors (120798488746).

161064651652 is a wasteful number, since it uses less digits than its factorization.

161064651652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40266162917 (or 40266162915 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 161064651652 in words is "one hundred sixty-one billion, sixty-four million, six hundred fifty-one thousand, six hundred fifty-two".