20070657406 has 8 divisors (see below), whose sum is σ = 30616257240. Its totient is φ = 9865238328.

The previous prime is 20070657401. The next prime is 20070657461. The reversal of 20070657406 is 60475607002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20070657401) 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, 85045041 + ... + 85045276.

It is an arithmetic number, because the mean of its divisors is an integer number (3827032155).

Almost surely, 2^20070657406 is an apocalyptic number.

20070657406 is a deficient number, since it is larger than the sum of its proper divisors (10545599834).

20070657406 is a wasteful number, since it uses less digits than its factorization.

20070657406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170090378.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 20070657406 in words is "twenty billion, seventy million, six hundred fifty-seven thousand, four hundred six".