20262571701542 has 32 divisors (see below), whose sum is σ = 30986252969760. Its totient is φ = 9934056437760.

The previous prime is 20262571701511. The next prime is 20262571701557. The reversal of 20262571701542 is 24510717526202.

It is a super-2 number, since 2×20262571701542² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20262571701493 and 20262571701502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1942156358 + ... + 1942166790.

It is an arithmetic number, because the mean of its divisors is an integer number (968320405305).

Almost surely, 2^{20262571701542} is an apocalyptic number.

20262571701542 is a deficient number, since it is larger than the sum of its proper divisors (10723681268218).

20262571701542 is a wasteful number, since it uses less digits than its factorization.

20262571701542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19928.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 20262571701542 in words is "twenty trillion, two hundred sixty-two billion, five hundred seventy-one million, seven hundred one thousand, five hundred forty-two".