40542001661010 has 64 divisors (see below), whose sum is σ = 98086713816960. Its totient is φ = 10723949783040.

The previous prime is 40542001661009. The next prime is 40542001661059. The reversal of 40542001661010 is 1016610024504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6663636 + ... + 11202144.

It is an arithmetic number, because the mean of its divisors is an integer number (1532604903390).

Almost surely, 2^{40542001661010} is an apocalyptic number.

40542001661010 is an abundant number, since it is smaller than the sum of its proper divisors (57544712155950).

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

40542001661010 is a wasteful number, since it uses less digits than its factorization.

40542001661010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540923.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 40542001661010 its reverse (1016610024504), we get a palindrome (41558611685514).

The spelling of 40542001661010 in words is "forty trillion, five hundred forty-two billion, one million, six hundred sixty-one thousand, ten".