20695241254 has 32 divisors (see below), whose sum is σ = 33129077760. Its totient is φ = 9673278912.

The previous prime is 20695241243. The next prime is 20695241269. The reversal of 20695241254 is 45214259602.

It is a super-2 number, since 2×20695241254² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591242 + ... + 1604194.

It is an arithmetic number, because the mean of its divisors is an integer number (1035283680).

Almost surely, 2^20695241254 is an apocalyptic number.

20695241254 is a deficient number, since it is larger than the sum of its proper divisors (12433836506).

20695241254 is a wasteful number, since it uses less digits than its factorization.

20695241254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20695241254 in words is "twenty billion, six hundred ninety-five million, two hundred forty-one thousand, two hundred fifty-four".