20906694350 has 48 divisors (see below), whose sum is σ = 41227526448. Its totient is φ = 7860503040.

The previous prime is 20906694337. The next prime is 20906694371. The reversal of 20906694350 is 5349660902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653324 + ... + 684576.

It is an arithmetic number, because the mean of its divisors is an integer number (858906801).

Almost surely, 2^20906694350 is an apocalyptic number.

20906694350 is a deficient number, since it is larger than the sum of its proper divisors (20320832098).

20906694350 is a wasteful number, since it uses less digits than its factorization.

20906694350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32069 (or 32064 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 20906694350 in words is "twenty billion, nine hundred six million, six hundred ninety-four thousand, three hundred fifty".