20070191401 has 12 divisors (see below), whose sum is σ = 21736875420. Its totient is φ = 18522865920.

The previous prime is 20070191389. The next prime is 20070191411. The reversal of 20070191401 is 10419107002.

It can be written as a sum of positive squares in 6 ways, for example, as 6885376 + 20063306025 = 2624^2 + 141645^2 .

It is not a de Polignac number, because 20070191401 - 2¹³ = 20070183209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20070191411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1509141 + ... + 1522381.

It is an arithmetic number, because the mean of its divisors is an integer number (1811406285).

Almost surely, 2^20070191401 is an apocalyptic number.

It is an amenable number.

20070191401 is a deficient number, since it is larger than the sum of its proper divisors (1666684019).

20070191401 is a wasteful number, since it uses less digits than its factorization.

20070191401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236 (or 22223 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 20070191401 its reverse (10419107002), we get a palindrome (30489298403).

The spelling of 20070191401 in words is "twenty billion, seventy million, one hundred ninety-one thousand, four hundred one".