1680700355 has 16 divisors (see below), whose sum is σ = 2027270784. Its totient is φ = 1337627520.

The previous prime is 1680700349. The next prime is 1680700369. The reversal of 1680700355 is 5530070861.

It is not a de Polignac number, because 1680700355 - 2¹⁶ = 1680634819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991889 + ... + 993581.

It is an arithmetic number, because the mean of its divisors is an integer number (126704424).

Almost surely, 2^1680700355 is an apocalyptic number.

1680700355 is a deficient number, since it is larger than the sum of its proper divisors (346570429).

1680700355 is a wasteful number, since it uses less digits than its factorization.

1680700355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1680700355 is about 40996.3456298241. The cubic root of 1680700355 is about 1188.9495602798.

The spelling of 1680700355 in words is "one billion, six hundred eighty million, seven hundred thousand, three hundred fifty-five".