402565551542 has 16 divisors (see below), whose sum is σ = 752849862912. Its totient is φ = 156843721320.

The previous prime is 402565551491. The next prime is 402565551551. The reversal of 402565551542 is 245155565204.

It is a junction number, because it is equal to n+sod(n) for n = 402565551493 and 402565551502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307030858 + ... + 1307031165.

It is an arithmetic number, because the mean of its divisors is an integer number (47053116432).

Almost surely, 2^402565551542 is an apocalyptic number.

402565551542 is a deficient number, since it is larger than the sum of its proper divisors (350284311370).

402565551542 is a wasteful number, since it uses less digits than its factorization.

402565551542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614062043.

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 402565551542 in words is "four hundred two billion, five hundred sixty-five million, five hundred fifty-one thousand, five hundred forty-two".