1020655351950 has 384 divisors, whose sum is σ = 2946051440640. Its totient is φ = 231882393600.

The previous prime is 1020655351913. The next prime is 1020655351951. The reversal of 1020655351950 is 591535560201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020655351951) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 144996531 + ... + 145003569.

It is an arithmetic number, because the mean of its divisors is an integer number (7672008960).

Almost surely, 2^{1020655351950} is an apocalyptic number.

1020655351950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020655351950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473025720320).

1020655351950 is an abundant number, since it is smaller than the sum of its proper divisors (1925396088690).

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

1020655351950 is a wasteful number, since it uses less digits than its factorization.

1020655351950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204 (or 7199 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 42.

The spelling of 1020655351950 in words is "one trillion, twenty billion, six hundred fifty-five million, three hundred fifty-one thousand, nine hundred fifty".