20070661023 has 36 divisors (see below), whose sum is σ = 35707960080. Its totient is φ = 10794301056.

The previous prime is 20070660983. The next prime is 20070661031. The reversal of 20070661023 is 32016607002.

It is a happy number.

20070661023 is a `hidden beast` number, since 20 + 0 + 7 + 0 + 6 + 610 + 23 = 666.

It is not a de Polignac number, because 20070661023 - 2¹² = 20070656927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20070661073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1331083 + ... + 1346076.

It is an arithmetic number, because the mean of its divisors is an integer number (991887780).

Almost surely, 2^20070661023 is an apocalyptic number.

20070661023 is a deficient number, since it is larger than the sum of its proper divisors (15637299057).

20070661023 is a wasteful number, since it uses less digits than its factorization.

20070661023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677196 (or 2677186 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 20070661023 in words is "twenty billion, seventy million, six hundred sixty-one thousand, twenty-three".