20270161774 has 16 divisors (see below), whose sum is σ = 30981606336. Its totient is φ = 9943797600.

The previous prime is 20270161753. The next prime is 20270161781. The reversal of 20270161774 is 47716107202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160822 + ... + 257689.

It is an arithmetic number, because the mean of its divisors is an integer number (1936350396).

Almost surely, 2^20270161774 is an apocalyptic number.

20270161774 is a deficient number, since it is larger than the sum of its proper divisors (10711444562).

20270161774 is a wasteful number, since it uses less digits than its factorization.

20270161774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418971.

The product of its (nonzero) digits is 32928, while the sum is 37.

Adding to 20270161774 its reverse (47716107202), we get a palindrome (67986268976).

The spelling of 20270161774 in words is "twenty billion, two hundred seventy million, one hundred sixty-one thousand, seven hundred seventy-four".