20537505070 has 32 divisors (see below), whose sum is σ = 38288829600. Its totient is φ = 7922065536.

The previous prime is 20537505049. The next prime is 20537505073. The reversal of 20537505070 is 7050573502.

It is a super-2 number, since 2×20537505070² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20537505073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197697 + ... + 283123.

It is an arithmetic number, because the mean of its divisors is an integer number (1196525925).

Almost surely, 2^20537505070 is an apocalyptic number.

20537505070 is a deficient number, since it is larger than the sum of its proper divisors (17751324530).

20537505070 is a wasteful number, since it uses less digits than its factorization.

20537505070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86292.

The product of its (nonzero) digits is 36750, while the sum is 34.

The spelling of 20537505070 in words is "twenty billion, five hundred thirty-seven million, five hundred five thousand, seventy".