1670771672356 has 6 divisors (see below), whose sum is σ = 2923850426630. Its totient is φ = 835385836176.

The previous prime is 1670771672341. The next prime is 1670771672357. The reversal of 1670771672356 is 6532761770761.

It can be written as a sum of positive squares in only one way, i.e., 1163636838400 + 507134833956 = 1078720^2 + 712134^2 .

It is a super-2 number, since 2×1670771672356² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1670771672356.

It is not an unprimeable number, because it can be changed into a prime (1670771672357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208846459041 + ... + 208846459048.

Almost surely, 2^{1670771672356} is an apocalyptic number.

It is an amenable number.

1670771672356 is a deficient number, since it is larger than the sum of its proper divisors (1253078754274).

1670771672356 is a wasteful number, since it uses less digits than its factorization.

1670771672356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417692918093 (or 417692918091 counting only the distinct ones).

The product of its (nonzero) digits is 15558480, while the sum is 58.

The spelling of 1670771672356 in words is "one trillion, six hundred seventy billion, seven hundred seventy-one million, six hundred seventy-two thousand, three hundred fifty-six".