670515121040 has 40 divisors (see below), whose sum is σ = 1558981756728. Its totient is φ = 268200181760.

The previous prime is 670515121039. The next prime is 670515121043. The reversal of 670515121040 is 40121515076.

It can be written as a sum of positive squares in 4 ways, for example, as 280594802944 + 389920318096 = 529712^2 + 624436^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 670515120988 and 670515121006.

It is not an unprimeable number, because it can be changed into a prime (670515121043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6915134 + ... + 7011426.

Almost surely, 2^670515121040 is an apocalyptic number.

It is an amenable number.

670515121040 is an abundant number, since it is smaller than the sum of its proper divisors (888466635688).

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

670515121040 is a wasteful number, since it uses less digits than its factorization.

670515121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183347 (or 183341 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 670515121040 in words is "six hundred seventy billion, five hundred fifteen million, one hundred twenty-one thousand, forty".