670615785352 has 8 divisors (see below), whose sum is σ = 1257404597550. Its totient is φ = 335307892672.

The previous prime is 670615785317. The next prime is 670615785397. The reversal of 670615785352 is 253587516076.

It can be written as a sum of positive squares in only one way, i.e., 595635107076 + 74980678276 = 771774^2 + 273826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 670615785293 and 670615785302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41913486577 + ... + 41913486592.

Almost surely, 2^670615785352 is an apocalyptic number.

It is an amenable number.

670615785352 is a deficient number, since it is larger than the sum of its proper divisors (586788812198).

670615785352 is a wasteful number, since it uses less digits than its factorization.

670615785352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83826973175 (or 83826973171 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 670615785352 in words is "six hundred seventy billion, six hundred fifteen million, seven hundred eighty-five thousand, three hundred fifty-two".