1406520663054 has 128 divisors (see below), whose sum is σ = 3156080578560. Its totient is φ = 415155027456.

The previous prime is 1406520663029. The next prime is 1406520663139. The reversal of 1406520663054 is 4503660256041.

It is a junction number, because it is equal to n+sod(n) for n = 1406520662997 and 1406520663015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33617452 + ... + 33659264.

It is an arithmetic number, because the mean of its divisors is an integer number (24656879520).

Almost surely, 2^{1406520663054} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406520663054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578040289280).

1406520663054 is an abundant number, since it is smaller than the sum of its proper divisors (1749559915506).

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

1406520663054 is a wasteful number, since it uses less digits than its factorization.

1406520663054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42066.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 1406520663054 in words is "one trillion, four hundred six billion, five hundred twenty million, six hundred sixty-three thousand, fifty-four".