1670988693372 has 12 divisors (see below), whose sum is σ = 3898973617896. Its totient is φ = 556996231120.

The previous prime is 1670988693371. The next prime is 1670988693373. The reversal of 1670988693372 is 2733968890761.

It is an interprime number because it is at equal distance from previous prime (1670988693371) and next prime (1670988693373).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1670988693297 and 1670988693306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670988693371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69624528879 + ... + 69624528902.

It is an arithmetic number, because the mean of its divisors is an integer number (324914468158).

Almost surely, 2^{1670988693372} is an apocalyptic number.

1670988693372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1670988693372 is an abundant number, since it is smaller than the sum of its proper divisors (2227984924524).

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

1670988693372 is a wasteful number, since it uses less digits than its factorization.

1670988693372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139249057788 (or 139249057786 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 69.

The spelling of 1670988693372 in words is "one trillion, six hundred seventy billion, nine hundred eighty-eight million, six hundred ninety-three thousand, three hundred seventy-two".