20261306246 has 8 divisors (see below), whose sum is σ = 30392675544. Its totient is φ = 10130414400.

The previous prime is 20261306239. The next prime is 20261306251. The reversal of 20261306246 is 64260316202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20261306246² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18641 + ... + 202163.

It is an arithmetic number, because the mean of its divisors is an integer number (3799084443).

Almost surely, 2^20261306246 is an apocalyptic number.

20261306246 is a deficient number, since it is larger than the sum of its proper divisors (10131369298).

20261306246 is a wasteful number, since it uses less digits than its factorization.

20261306246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238726.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 20261306246 in words is "twenty billion, two hundred sixty-one million, three hundred six thousand, two hundred forty-six".