20401261150 has 24 divisors (see below), whose sum is σ = 38156010984. Its totient is φ = 8115415200.

The previous prime is 20401261147. The next prime is 20401261151. The reversal of 20401261150 is 5116210402.

It is a super-2 number, since 2×20401261150² (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 (20401261151) 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, 1118092 + ... + 1136191.

It is an arithmetic number, because the mean of its divisors is an integer number (1589833791).

Almost surely, 2^20401261150 is an apocalyptic number.

20401261150 is a deficient number, since it is larger than the sum of its proper divisors (17754749834).

20401261150 is a wasteful number, since it uses less digits than its factorization.

20401261150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254476 (or 2254471 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 20401261150 its reverse (5116210402), we get a palindrome (25517471552).

The spelling of 20401261150 in words is "twenty billion, four hundred one million, two hundred sixty-one thousand, one hundred fifty".