1020402757168 has 20 divisors (see below), whose sum is σ = 2081084571160. Its totient is φ = 483348674304.

The previous prime is 1020402757147. The next prime is 1020402757169. The reversal of 1020402757168 is 8617572040201.

It is not an unprimeable number, because it can be changed into a prime (1020402757169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678293705 + ... + 1678294312.

It is an arithmetic number, because the mean of its divisors is an integer number (104054228558).

Almost surely, 2^{1020402757168} is an apocalyptic number.

It is an amenable number.

1020402757168 is an abundant number, since it is smaller than the sum of its proper divisors (1060681813992).

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

1020402757168 is a wasteful number, since it uses less digits than its factorization.

1020402757168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356588044 (or 3356588038 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

Adding to 1020402757168 its reverse (8617572040201), we get a palindrome (9637974797369).

The spelling of 1020402757168 in words is "one trillion, twenty billion, four hundred two million, seven hundred fifty-seven thousand, one hundred sixty-eight".