20690548295040 has 768 divisors, whose sum is σ = 81298660322880. Its totient is φ = 4996936728576.

The previous prime is 20690548295029. The next prime is 20690548295041. The reversal of 20690548295040 is 4059284509602.

20690548295040 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 0 + 54 + 82 + 9 + 504 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20690548295041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107056734 + ... + 107249826.

Almost surely, 2^{20690548295040} is an apocalyptic number.

20690548295040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20690548295040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40649330161440).

20690548295040 is an abundant number, since it is smaller than the sum of its proper divisors (60608112027840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20690548295040 is a wasteful number, since it uses less digits than its factorization.

20690548295040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193193 (or 193169 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 20690548295040 in words is "twenty trillion, six hundred ninety billion, five hundred forty-eight million, two hundred ninety-five thousand, forty".